Size selection: 75ml glasses are suitable for ladies and gentlemen Handmade double: walled glassware, these double-walled, insulated beer and tea cups are perfect for whiskey, cocktails, beer, tea or juice Insulated design for perfect drinking temperature: the sleek, sophisticated double layered glass insulates your drink keeping it hot or cold longer while the outside stays comfortable to your touch Easy to clean and durable: shatterproof, scratch resistant borosilicate glass is the material you want when dealing with any glassware for best results.and safe for microwave Skull head shape and double wall glass is novelty and funny